Pioneer SC430 - Am Noise Canceler Adjustment

73
FX-MG8156ZT,MG8156ZT-91,MG8317ZT,MG8317ZT-91
Connection:
Setting of the pulse generator (setting of
superimposed pulse)
Adjustment:
1. Setting of SSG
Receiving frequency : 999 kHz
Percentage modulation : 30%
Modulation frequency : 400 Hz
Antenna input : 74 dBuV (EMF)
2. Set the system as shown in 1., then tune to a
radio station.
3. Superimpose the pulse over signal to set
modulation of SSG to OFF.
4. Use a noise meter to monitor output. Adjust
VR552 to minimize the noise level.
Pulse generator
(equivalent to HP8011A)
SSG
2-signal pad AM dummy
FX-MG8156ZT/EW
FX-MG8317ZT/EW
Output
Noise meter
Pulse width :50usec
Pulse intervals :5msec
Pulse voltage :4Vp-p
4Vp-p(EMF)
50us
5ms
AM NOISE CANCELER ADJUSTMENT